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发明名称
Drilling machine
摘要
申请公布号
US1831547(A)
申请公布日期
1931.11.10
申请号
US19280258225
申请日期
1928.03.01
申请人
THE STEEL PRODUCTS ENGINEERING COMPANY
发明人
SCHOLL CLARK
分类号
B23Q5/52
主分类号
B23Q5/52
代理机构
代理人
主权项
地址
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